Xterra 2WD V6-4.0L (VQ40) (2005)
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Coolant: Testing and Inspection
System Check
WARNING:
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Never remove the radiator/reservoir cap when the engine is hot. Serious burns could occur from high pressure fluid escaping from the
radiator.
^
Wrap a thick cloth around the cap. Slowly push down and turn it a quarter turn to allow built-up pressure to escape. Carefully remove
the cap by pushing down and turning it all the way.
CHECKING COOLING SYSTEM HOSES
Check hoses for the following:
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Improper attachment
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Leaks
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Cracks
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Damage
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Loose connections
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Chafing
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Deterioration
CHECKING RESERVOIR LEVEL
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Check if the reservoir tank coolant level is within MIN to MAX when the engine is cool.
^
Adjust coolant level if it is too much or too little.
CHECKING COOLING SYSTEM FOR LEAKS
To check for leakage, apply pressure to the cooling system using Tool.
Tool number: EG17650301 (J-33984-A)
Testing pressure: 137 kPa (1.4 kg/cm2, 20 psi)
WARNING: Never remove the radiator/reservoir cap when the engine is hot. Serious burns could occur from high pressure coolant escaping
from the radiator.
CAUTION: Higher pressure than specified may cause radiator damage.